Underwater cave
Protected Area
SUAKA ALAM PERAIRAN KEPULAUAN RAJA AMPAT DAN LAUT SEKITARNYA
Why dive here
With 236+ marine species recorded in the area - including blacktip reef sharks, manta rays, mobula rays (devil rays), pygmy seahorses and sea turtles - Underwater cave offers some of Raja Ampat's richest cave diving. Water ranges 29-30°C, warmest May, November, December.
Raja Ampat's "Underwater cave" isn't a massive cavern system, but it’s a fascinating, compact dive. We’ve found it more of a dramatic overhang leading into a substantial grotto, with shafts of light often cutting through from above. Look closely in the darker corners for Denise's pygmy seahorses, though they take a keen eye and a patient spotter. It’s a site for divers who appreciate the subtle details and the geology as much as the fish, maybe not a beginner's first cave experience, but definitely approachable for those comfortable with overhead environments. Keep an eye out for Malabar groupers lurking in the shadows, and we’ve even spotted Olive Ridley turtles passing by the entrance.
Safety Notes
Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.
Strong currents typical this month (avg 35 cm/s). Good buoyancy control essential.
Nearest Dive Centres to Underwater cave
Dive shops near Underwater cave
Papua Explorers Resort
Tarzan-Diving
Raja Ampat Biodiversity Resort
Mantastic Scuba Paradise
Mangkur Kodong
Delvin
Reviews for Underwater cave
Conditions
Ocean conditions, forecast and tides for Underwater cave
Underwater cave Ocean Conditions
Monthly averages for Underwater cave, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-0.5, 130.6) (0km away)
October Averages
Sea Temperature
30°C
86°F · Range: 29.2–30.9°C
Current Speed
34.71 cm/s
Direction: NW (311.5°)
Chlorophyll-a
0.138 mg/m³
Clear water
Salinity
34.33 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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